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Finding the Fourth Proportional to 488,543.10, 732,814.65 and 172,895.10

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Solution

The fourth proportional to 488,543.10, 732,814.65 and 172,895.10 is: 259,342.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,543.10 : 732,814.65 = 172,895.10 : x
  2. Step 2: Convert to fraction form
    488,543.10/732,814.65 = 172,895.10/x
  3. Step 3: Cross multiply
    488,543.10x = 732,814.65 × 172,895.10
  4. Step 4: Simplify right side
    488,543.10x = 126,700,062,193.22
  5. Step 5: Solve for x
    x = 126,700,062,193.22/488,543.10
  6. Step 6: Final answer
    x = 259,342.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.